DARK KNUCKLES 7DAYS SERUM.

Dark Knuckles 7Days Serum is a targeted treatment designed to visibly lighten and smooth darkened knuckles within just one week. Its expert formula penetrates deeply to reduce discoloration and restore even skin tone, helping you achieve softer, more radiant hands. Ideal for addressing stubborn pigmentation, this serum supports skin renewal while improving texture, giving you confidence in every handshake.